TY  - BOOK
AU  - Forsyth,Andrew Russell
TI  - Theory of differential equations 
U1  - 514.7 FOR  
PY  - 1959///.
CY  - New York : 
PB  - Dover Publications, Inc., 
KW  - Differential equations
KW  - Mathematics
N1  - Includes index.; Vol. 1 Exact equations and Pfaff's problem. --
Vol. 2 Ordinary equations, not linear. --

ER  -